    // 安装固定
    .step7 {
        height: 100%;
        position: relative;
        .step7-one {
            height: 80%;
            color: #222;
            position: relative;
            &>div {
                width: 90% !important;
                margin-left: 15px !important;
                margin-right: 15px !important;
            }
            h3 {
                padding-left: 15px;
                font-size: 15px;
                margin: 0;
            }
            &>div {
                margin-top: 5px;
                div:nth-of-type(1) {
                    position: relative;
                    span {
                        display: inline-block;
                        width: 3px;
                        height: 13px;
                        background: #00b5ff;
                        position: absolute;
                        top: 50%;
                        transform: translate(-50%, -50%);
                    }
                    label {
                        margin-left: 5px;
                        font-size: 15px;
                    }
                }
                div:nth-of-type(2) {
                    color: #787878;
                    padding-left: 5px;
                    height: 100%;
                    overflow-y: auto;
                    ul {
                        margin: 0;
                        padding: 0;
                        list-style: none;
                        display: flex;
                        flex-wrap: wrap;
                        li {
                            width: 50%;
                            font-size: 12px;
                            position: relative;
                            label {
                                display: inline-block;
                                font-size: 12px;
                                max-width: 60%;
                                overflow: hidden;
                                white-space: nowrap;
                                text-overflow: ellipsis;
                            }
                            p {
                                max-width: 70%;
                                display: inline-block;
                                margin: 0;
                                color: #222;
                                font-weight: 500;
                                text-overflow: ellipsis;
                                overflow-x: hidden;
                                white-space: nowrap;
                            }
                            span {
                                color: #00b5ff;
                                margin-left: 20px;
                            }
                            i {
                                right: 30px;
                                top: 50%;
                                position: absolute;
                                width: 5px;
                                height: 10px;
                                border-width: 2px;
                                border-top-width: 0;
                                border-left-width: 0;
                                border-style: solid;
                                border-color: #f00;
                                transform: rotate(45deg) translate(0, -100%);
                            }
                        }
                    }
                }
            }
        }
    }
    
    button {
        width: 90%;
        padding: 15px;
        position: absolute;
        bottom: 20px;
        border-radius: 5px;
        background: #00b5ff;
        color: #fff;
        left: 5%;
        outline: none;
    }